1. Research Engineer, Dept. of Public Work, Ministry of Public Work and Transportation, H. E. Chea Sophara St., Sangkat Chrang Chamres 2, Phnom Penh 12108, Cambodia.
2. Research Engineer, Dept. of Public Work, Ministry of Public Work and Transportation, H.E. Chea Sophara St., Sangkat Chrang Chamres 2, Phnom Penh 12108, Cambodia.
3. Master of Engineering, Dept. of Civil Engineering, Gangneung-Wonju National Univ., Jeebeon-gil 7, Gangneung-si, Gangwon-do 25457, South Korea.
4. Research Professor, Institute for Smart Infrastructure, Gangneung-Wonju National Univ., Jeebeon-gil 7, Gangneung-si, Gangwon-do 25457, South Korea.
5. Professor, Dept. of Civil Engineering, Gangneung-Wonju National Univ., Jeebeon-gil 7, Gangneung-si, Gangwon-do 25457, South Korea (corresponding author).